southern resources mapping corporation reliability. quality. integrity - since 1974 color infrared...
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Southern Southern Resources Resources Mapping Mapping
CorporationCorporation
Reliability. Quality. Integrity - Since 1974
COLOR INFRAREDFAILING SEPTIC TANK
IDENTIFICATION STUDY
What is it? How’s it What is it? How’s it work?work?
Southern Resources Southern Resources MappingMapping
Technology has been around for decades. Technology has been around for decades. (EPA (EPA report 1985)report 1985)
Color-Infrared (CIR) - vigorous growth = dark redColor-Infrared (CIR) - vigorous growth = dark red
Early spring – Emergent grassEarly spring – Emergent grass
Failing septic systems - CIR signatureFailing septic systems - CIR signature
Failure types:Failure types:• Surface:Surface: above ground flowabove ground flow• Seasonal:Seasonal: indications of wastewater, indications of wastewater,
no surface accumulationno surface accumulation• Seasonal stress:Seasonal stress: enhanced vegetationenhanced vegetation
Study AreaStudy Area
Southern Resources Southern Resources MappingMapping
Three mile radius of Three mile radius of the Lakes of the Lakes of TuscaloosaTuscaloosa
(Tuscaloosa, Nicol, (Tuscaloosa, Nicol, Harris)Harris)
Approx. 167 sq. mi.Approx. 167 sq. mi.
ProcedureProcedure
Southern Resources Southern Resources MappingMapping
March 19:March 19: Acquired CIR photographyAcquired CIR photography
Southern Resources Southern Resources MappingMapping
14 flight lines14 flight lines151 photos151 photosat 6,300’at 6,300’1”=1000’ Neg 1”=1000’ Neg scalescaleEach pixel = Each pixel = 0.95’0.95’Each photo = Each photo = 272MB272MB
ProcedureProcedure
Southern Resources Southern Resources MappingMapping
March 19:March 19: Acquired CIR photographyAcquired CIR photography
Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)
Southern Resources Southern Resources MappingMapping
Southern Resources Southern Resources MappingMapping
ProcedureProcedure
Southern Resources Southern Resources MappingMapping
March 19:March 19: Acquired CIR photographyAcquired CIR photography
Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)
May 25:May 25: Field inspection of sample setField inspection of sample set(City and County Health Department)(City and County Health Department)
ProcedureProcedure
Southern Resources Southern Resources MappingMapping
Location ClassificationsLocation Classifications
Do not mark:Do not mark: Discoloration, but no distinctive Discoloration, but no distinctive patternpattern
Possible Failure:Possible Failure: Some evidence of field lines/tank spotSome evidence of field lines/tank spot
Probable Failure:Probable Failure: Strong evidence of field lines/tank spotStrong evidence of field lines/tank spot
Likely Failure:Likely Failure: Strong evidence of field lines/tank spotStrong evidence of field lines/tank spotOver-ground flowOver-ground flow
ProcedureProcedure
Southern Resources Southern Resources MappingMapping
March 19:March 19: Acquired CIR photographyAcquired CIR photography
Mar 19 – May 14:Mar 19 – May 14: Sample set identification (20 sites)Sample set identification (20 sites)
May 25:May 25: Field inspection of sample setField inspection of sample set(City and County Health Department)(City and County Health Department)
May 24 – Sept 10:May 24 – Sept 10: CIR examination and report CIR examination and report prepprep
FindingsFindings
Southern Resources Southern Resources MappingMapping
FindingsFindings
Southern Resources Southern Resources MappingMapping
44
77
183183
Likely FailuresLikely Failures
Probable FailuresProbable Failures
Possible FailuresPossible Failures
CIR investigation CIR investigation found:found:
Health Department Health Department investigation:investigation:
March 7, 2011March 7, 20113 failing, 1 vacant3 failing, 1 vacant
4 failing, 2 false positive, 1 4 failing, 2 false positive, 1 vacant vacant
Catalogued for future useCatalogued for future use
FindingsFindings
Southern Resources Southern Resources MappingMapping
Likely Failures – 100% success rateLikely Failures – 100% success rate
Likely and Probable Failures – 78% success Likely and Probable Failures – 78% success raterate
Nearly 100% success rate of locating septic Nearly 100% success rate of locating septic systemssystems
Southern Southern Resources Resources Mapping Mapping
CorporationCorporation
Reliability. Quality. Integrity - Since 1974
COLOR INFRAREDFAILING SEPTIC TANK
IDENTIFICATION STUDY
Questions?